PKB4113CPI datasheet(35/43 Pages) ERICSSON

35 / 43 page

Ericsson Internal

PRODUCT SPECIFICATION

3 (6)

Prepared (also subject responsible if other)

No.

ESHUHAN

3/1301-BMR 655 Uen

Approved

Checked

Date

Rev

Reference

SEC/D (Betty Wu)

EZHEWNG

2009-2-13

Operating information continued

Parallel Operation

Two converters may be paralleled for redundancy if the total

power is equal or less than PO max. It is not recommended to

parallel the converters without using external current sharing

circuits.

See Design Note 006 for detailed information.

Remote Sense

The DC/DC converters have remote sense that can be used to

compensate for voltage drops between the output and the

point of load. The sense traces should be located close to the

PCB ground layer to reduce noise susceptibility. The remote

sense circuitry will compensate for up to 10% voltage drop

between output pins and the point of load.

If the remote sense is not needed +Sense should be

connected to +Out and -Sense should be connected to -Out.

Over Temperature Protection (OTP)

The converters are protected from thermal overload by an

internal over temperature shutdown circuit.

When Tp1 as defined in thermal consideration section

exceeds 135°C the converter will shut down. The DC/DC

converter will make continuous attempts to start up (non-

latching mode) and resume normal operation automatically

when the temperature has dropped >10°C below the

temperature threshold.

The converters with latching option will shut down the module

when Tp1 exceeds 135°C and remain shut down until the

module restarts by switching on/off the input voltage or

Remote control.

Over Voltage Protection (OVP)

The converters have output over voltage protection that will

shut down the converter in over voltage conditions. The

converter will make continuous attempts to start up (non-

latching mode) and resume normal operation automatically

after removal of the over voltage condition.

The converters with latching option will shut down the module

in over voltage condition and remain shut down until the

converter restarts by switching on/off the input voltage or

Remote control.

Over Current Protection (OCP)

The converters include current limiting circuitry for protection

at continuous overload.

The output voltage will decrease towards 30% of nominal

output voltage for output currents in excess of max output

current (max IO). When reaching 30% of nominal output

voltage the converter will go into hic-up mode. The converter

will resume normal operation after removal of the overload.

The load distribution should be designed for the maximum

output short circuit current specified.

The converters with latching option will shut down the module

when reaching 30% of nominal output voltage and remain shut

down until the converter restarts by switching on/off the input

voltage or Remote control.

Pre-bias Start-up

The converter has a Pre-bias start up functionality. The

converter will sink current in a controlled way during start up if

a pre-bias source is present at the output terminals.

PKB4000C series Direct Converters

Input 36-75 V, Output up to 60 A / 144 W

EN/LZT 146 377 R4

D September 2013

Technical Speciﬁcation

PKB4113CPI датащи(PDF) 35 Page - Ericsson

PKB4113CPI датащи(HTML) 35 Page - Ericsson

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

датащи скачать

ссылки URL